“It’s easier than the first year or two, but it’s still hard for everyone not knowing what has happened,” said Mary Garr, Wood’s daughter, who was among more than 100 volunteers and relatives who searched the area for evidence following the fire. “We search all the time. We have reward posters and put them up off and on all the time.”

Garr stuck a poster to the back window of her SUV since her father’s death and won’t take it off until her family gets answers.

“He was just always a big part of our lives,” said Carolyn Harkin, Wood’s sister. “We have a family breakfast coming up in a couple of weeks, and you can’t help but think William would have been there.”

Investigators said the suspect in the case is likely someone who knew the couple and poses no threat to the public.

“Is there a person out there shooting people and setting fire to houses? No,” DCI Special Agent Mike Motsinger said.

They are narrowing their search to a man shown in a sketch.

Witnesses said they saw the man near the Wood’s truck found in Kansas City, Missouri.

Harkin said the unanswered questions are agonizing for her and her family.

“Besides the fact that we don’t know who did it, it’s that we are still hurting because he didn’t have to go then,” she said. “He could have had many more years.”

And Wood’s family refuses to give up hope.

If anyone has information about the case, they are asked to contact police.